The Panasonic home theater system features a non-powered subwoofer, powered by an amp in the DVD/Receiver unit. The subwoofer uses an enclosed 6-ohm, 6.5" woofer and a side-firing 10" cone Kelton passive radiator. The subwoofer is not video shielded. The woofer's enclosure features four rubber feet to prevent vibration. There is a 13' length of speaker wire attached to the...
Oxygen Audio SPIRAL380 15 inch. Subwoofer, 330 Watts, 85 oz Magnet (O2 SPIRAL380) (SINGLE PIECE). *Size: 15' subwoofer*Power (WRMS): 330W*Magnet size: 85 OZ*Frequency range: 28HZ/1.2KZ*Sensitivity: 90*1W/1M/2V (dB)
This is a nice Panasonic SB-WA15 Placement Subwoofer. It features a 6" woofer, and for SB-WA15 Subwoofers.